simsite/frontend/node_modules/three-stdlib/textures/FlakesTexture.js

class FlakesTexture {
  constructor(width = 512, height = 512) {
    const canvas = document.createElement("canvas");
    canvas.width = width;
    canvas.height = height;
    const context = canvas.getContext("2d");
    context.fillStyle = "rgb(127,127,255)";
    context.fillRect(0, 0, width, height);
    for (let i = 0; i < 4e3; i++) {
      const x = Math.random() * width;
      const y = Math.random() * height;
      const r = Math.random() * 3 + 3;
      let nx = Math.random() * 2 - 1;
      let ny = Math.random() * 2 - 1;
      let nz = 1.5;
      const l = Math.sqrt(nx * nx + ny * ny + nz * nz);
      nx /= l;
      ny /= l;
      nz /= l;
      context.fillStyle = "rgb(" + (nx * 127 + 127) + "," + (ny * 127 + 127) + "," + nz * 255 + ")";
      context.beginPath();
      context.arc(x, y, r, 0, Math.PI * 2);
      context.fill();
    }
    return canvas;
  }
}
export {
  FlakesTexture
};
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